PPESK树脂基复合材料的摩擦磨损性能  

FRICTION AND WEAR PROPERTIES OF PPESK COMPOSITES

作　　者：彭静[1] 蹇锡高[2] 刘少琼[1] 郭晓园[1] 

机构地区：[1]大连理工大学 [2]大连理工大学化工学院高分子材料系,大连市116012

出　　处：《材料研究学报》2001年第2期244-248,共5页Chinese Journal of Materials Research

基　　金：国家"九五"重点攻关项目97-564-0l-07

摘　　要：以含二氮杂萘酮结构的聚醚砜酮（ＰＰＥＳＫ）树脂为基体，填加固体润滑剂和短炭纤维（ＣＦ）制备了新型耐热树脂基复合材料、研究了摩擦条件（如载荷、行程等）和ＣＦ含量对复合材料的摩擦磨损性能的影响，分析了ＰＰＥＳＫ树脂及其复合材料的磨损机理．结果表明，短ＣＦ和固体润滑剂的加入可有 效改善ＰＰＥＳＫ的摩擦磨损性能．当ＣＦ含量为１０％时，复合材料的摩擦系数与聚四氟乙烯（ＰＴＦＥ） 相当，但比磨损率降低２个数量级；与纯树脂相比，摩擦系数减小为原来的二分之一，比磨损率下降１个数量级，显示出优良的减磨自润滑性能．纯树脂的磨损机理主要是刨削磨损和粘着磨损，而复合材料的磨损特性主要表现为粘着磨损.ＰＰＥＳＫ树脂基复合材料比基体、聚四氟乙烯（ＰＴＦＥ）具有更好的耐磨性和自润滑性．A novel high temperature composite based on Poly (phthalazinone ether sulfone ketone) (PPESK) adding solid lubricants and shot pitch-based carbon fibers are prepared in this paper. Influence of experimental parameters such as load. sliding distance and CF content on the friction and wear property of composites are discussed; the wear mechanism of PPESK and composites are investigated by using SEM. The results show that the addition of CF is effective to improve the tribological property of PPESK. When CF content is 10%, the friction coefficient of composite is equal to that of PTFE, but the specific wear rate is much lower than that of PTFE; and the tribological properties is better than that of neat PPESK. The wear mechanism of PPESK mainly includes abrasive wear and adhesive wear, but that of composite predominately is adhesive wear.

关 键 词：短炭纤维 固体润滑剂 PPESK 摩擦磨损 聚醚砜酮树脂基复合材料 

分 类 号：TQ326.5[化学工程—合成树脂塑料工业]